<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>03-比较运算符</title>
  </head>

  <body>
    <script>
      console.log(3 > 5)
      console.log(3 >= 3)
      console.log(2 == 2)
      console.log(2 == '2')
      console.log(4 === '4')
      console.log(undefined == null)

      console.log(NaN === NaN) //NaN 不等于任何人，包括他自己
    </script>
  </body>
</html>
